:root{--csToc-top: 120px;--csToc-offset: 110px}.csToc-target{scroll-margin-top:var(--csToc-offset)}@media (prefers-reduced-motion: no-preference){html.has-csToc{scroll-behavior:smooth}}.csToc{position:fixed;z-index:100;font-size:14px;line-height:1.5;color:#555;background:#fff;opacity:0;visibility:hidden;transition:opacity 0.2s, visibility 0.2s}.csToc.is-visible{opacity:1;visibility:visible}.csToc__head{display:flex;align-items:center;gap:12px;width:100%;padding:0 8px 8px;margin:0;font:inherit;text-align:left;color:#888;background:none;border:0;cursor:default}.csToc__title{font-size:12px;font-weight:bold}.csToc__now{display:none}.csToc__pct{margin-left:auto;font-size:12px;font-variant-numeric:tabular-nums;color:#aaa}.csToc__bar{height:3px;margin:0 8px 8px;background:#e8e8e8;border-radius:2px;overflow:hidden}.csToc__barFill{display:block;width:100%;height:100%;background:#00529f;transform:scaleX(0);transform-origin:left center}.csToc__list{position:relative;margin:0;padding:0;list-style:none;overflow-y:auto;overscroll-behavior:contain;scrollbar-width:thin}.csToc__item{margin:0;padding:0;list-style:none}.csToc__link{display:flex;align-items:center;gap:12px;padding:10px 12px;color:#555;text-decoration:none;border-radius:8px;transition:background-color 0.15s, color 0.15s}.csToc__link:hover{background:#f3f6fa;text-decoration:none}.csToc__link:focus-visible{outline:2px solid #00529f;outline-offset:2px}.csToc__num{flex:none;font-size:16px;font-variant-numeric:tabular-nums}.csToc__txt{min-width:0;word-break:break-word}.csToc__item.is-read .csToc__link{color:#b5b5b5}.csToc__item.is-current .csToc__link{font-weight:bold;color:#00529f;background:#e6eef9;box-shadow:inset 4px 0 0 #00529f}.csToc__item.is-current .csToc__link::after{content:"";flex:none;width:0;height:0;border-style:solid;border-width:5px 7px 5px 0;border-color:transparent currentColor transparent transparent}@media screen and (min-width: 1480px){.csToc{top:var(--csToc-top);left:calc(50% - 732px);display:flex;flex-direction:column;width:208px;max-height:calc(100vh - var(--csToc-top) - 40px);padding:16px 8px 8px;border:1px solid #e5e5e5;border-radius:16px;box-shadow:0 4px 16px rgba(0,0,0,0.08)}.csToc__head{pointer-events:none}}@media screen and (max-width: 1479px){.csToc{left:0;right:0;bottom:0;padding-bottom:env(safe-area-inset-bottom, 0px);border-top:1px solid #e5e5e5;box-shadow:0 -2px 8px rgba(0,0,0,0.08)}.csToc__head{position:relative;padding:14px 16px 12px;color:#333;cursor:pointer}.csToc__head::after{content:"";flex:none;width:8px;height:8px;margin-left:4px;border-top:2px solid #888;border-right:2px solid #888;transform:rotate(-45deg);transition:transform 0.2s}.csToc.is-open .csToc__head::after{transform:rotate(135deg)}.csToc__title{font-size:13px;color:#333}.csToc__now{display:block;flex:1;min-width:0;overflow:hidden;font-weight:bold;white-space:nowrap;text-overflow:ellipsis;color:#00529f}.csToc__pct{margin-left:0}.csToc__bar{position:absolute;top:0;left:0;right:0;height:3px;margin:0;border-radius:0}.csToc__list{display:none;position:absolute;left:0;right:0;bottom:100%;max-height:60vh;padding:12px 8px;background:#fff;border-radius:16px 16px 0 0;box-shadow:0 -4px 16px rgba(0,0,0,0.12)}.csToc.is-open .csToc__list{display:block}}@media screen and (max-width: 750px){.csToc__link{padding:12px}}@media print{.csToc{display:none}}